JP2008308329A - Image forming device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a manual feed tray from contacting with a mounting face or prevent a manual feed sheet on the manual feed tray from dropping when a cover member is opened while the manual feed tray is opened, in a printer and a copying machine. <P>SOLUTION: In the cover member 3, its oscillation center 76 is supported to be capable of oscillating by an image forming device body 2, and takes a closing position of an upright posture and an opening position A2 of a tilted posture. In a manual feed tray 13, its oscillation center 13c is supported to be capable of oscillating by the cover member 3, and takes a storage position where the tray is stored in the cover member 3 and a paper feed position of a tilted posture. The lower end side of the front face 2a of the image forming device body 2 is directly connected with the lower end side of the manual feed tray 13 by a connecting member 80, so that the manual tray 13 is prevented from being opened at an angle not smaller than a tolerable opening angle α4 (for example, not larger than 90 degrees). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an image forming apparatus including an openable / closable cover member that covers a side surface of an image forming apparatus main body, and a manual feed tray that is openably / closably supported by the cover member.

  2. Description of the Related Art An image forming apparatus such as a printer or a copier has been proposed that includes a cover member (vertical conveyance door) for opening and closing a sheet conveyance path and a manual feed tray that is supported by the cover member so as to be opened and closed. (For example, refer to Patent Document 1). The lower end side (base end side) of the cover member is swingably supported by the image forming apparatus main body, and the sheet conveying path is opened by opening from the closed position in the standing position to the open position in the inclined position. Jam paper can be easily removed. On the other hand, the lower end side of the manual feed tray is swingably supported by a cover member. By pulling it out from the stowed storage position to the inclined feed position, a sheet is set on the upper surface of the manual feed tray. It becomes possible to do.

  In this type of image forming apparatus, when the cover member is opened to the open position in order to remove the jammed paper while the sheet is set on the manual feed tray disposed at the paper feed position, the free end side of the manual feed tray is the base end side. Since the sheet is inclined at a lower position, the sheet slips off from the manual feed tray.

Therefore, in the above-mentioned Patent Document 1, a fall prevention claw is provided at the free end of the manual feed tray. The sheet on the manual feed tray is prevented from dropping because the free end side is lifted upward by the fall-preventing claw even when the manual feed tray is tilted with the free end side lowered downward as described above. The
JP 2006-341987 A

  However, according to the above-mentioned Patent Document 1, the fall prevention claw is provided at the free end of the manual feed tray and only lifts a part of the free end side of the sheet upward. It is not always effective for non-slip sheets, large-sized sheets that protrude large from the fall-preventing claw, and slippery sheets such as art paper, and the sheet may slip over the fall-preventing claw. Furthermore, even if the fall prevention claw can prevent the sheet from dropping from the manual feed tray, the manual feed tray may collide with the mounting table on which the image forming apparatus main body is placed.

  Therefore, the present invention prevents the manual feed tray from coming into contact with the mounting table or dropping the sheet from the manual feed tray with a simple configuration regardless of the size and properties (for example, paper quality) of the sheet. It is an object of the present invention to provide an image forming apparatus capable of performing the above.

  According to a first aspect of the present invention, an image forming apparatus includes a sheet conveying unit that conveys a sheet and an image forming unit that forms an image on the sheet. In the image forming apparatus according to the present invention, the lower end side is swingably supported by the image forming apparatus main body, the closed position covers the side surface of the image forming apparatus main body in an upright posture, and the inclined posture in which the upper end side is pulled out to the near side. A cover member having an open position, a storage position in which the lower end side is swingably supported by the cover member, and stored in an upright position with respect to the cover member disposed in the closed position, and the upper end side is in front A manual feed tray that takes out a paper feed position in an inclined posture, and the image forming apparatus main body and the manual feed tray are connected to limit an allowable opening angle of the manual tray with respect to a side surface of the image forming apparatus main body. A connecting member that positions the manual feed tray at the restriction position, and the connecting member has the allowable opening angle while the manual feed tray is positioned at the paper feeding position. The bar members are configured to be smaller than the forming the opening angle between the manual feed tray and the side surface of the image forming apparatus main body when placed in the open position, and characterized in that.

  According to a second aspect of the present invention, in the image forming apparatus according to the first aspect, when the surface on which the main body of the image forming apparatus is mounted is a mounting surface, the allowable opening angle is the mounting surface of the manual feed tray. Or it is set as the open angle which does not contact the virtual expansion surface of the said mounting surface, It is characterized by the above-mentioned.

  The invention according to claim 3 is the image forming apparatus according to claim 2, wherein the allowable opening angle is set to 90 degrees or less.

  According to a fourth aspect of the present invention, in the image forming apparatus according to the third aspect, the connecting member is a long member having one end fixed to the image forming apparatus main body side and the other end fixed to the manual feed tray side. It is characterized by that.

  According to a fifth aspect of the present invention, in the image forming apparatus according to the fourth aspect, the other end of the connecting member is connected to a lower end side of the manual feed tray.

  According to a sixth aspect of the present invention, in the image forming apparatus according to the fifth aspect, the connecting member is formed of a flexible member, holds the manual feed tray at the allowable open angle in a tension state, and is in a relaxed state. The intermediate portion maintains a desired curved shape or bent shape.

  According to a seventh aspect of the present invention, in the image forming apparatus according to the sixth aspect, the connecting member has a weakened portion for maintaining the desired curved shape or bent shape in the intermediate portion in the relaxed state. It is a feature.

  According to an eighth aspect of the present invention, in the image forming apparatus according to the sixth aspect, the connecting member is formed of a string-like member or a chain-like member, and holds the manual feed tray at the allowable open angle in a tension state. In the relaxed state, the middle part is slackened downward.

  According to a ninth aspect of the present invention, in the image forming apparatus according to the eighth aspect of the present invention, the image forming apparatus includes a storage portion that stores the intermediate portion that is loosened in a relaxed state of the connecting member.

  According to a tenth aspect of the present invention, in the image forming apparatus according to any one of the first to ninth aspects, the connecting member is arranged at at least one of the lateral ends of the manual feed tray. It is characterized by being installed.

  According to an eleventh aspect of the present invention, in the image forming apparatus according to any one of the first to tenth aspects, the sheet conveying section includes a sheet conveying path that is opened by opening the cover member. It is said.

  According to the first aspect of the present invention, the cover member is opened in the upright position, and the cover member is opened in a situation where the manual feed tray is disposed in the feeding position in the inclined position with respect to the cover member. In this case, when the opening angle of the manual feed tray with respect to the side surface of the image forming apparatus main body reaches the allowable opening angle, even if the cover member is further opened, further opening is prohibited by the connecting member. . Accordingly, by setting the permissible opening angle appropriately, the manual feed tray collides with the placement surface (the surface on which the image forming apparatus main body is placed), or the manual feed sheets stacked on the manual feed tray Can be prevented from slipping off.

  According to the invention of claim 2, for example, even when the manual feed tray is placed at the paper feed position and the cover member is moved from the closed position to the open position, the manual feed tray contacts the stacking surface or its extended surface. There is nothing.

  According to the invention of claim 3, even when the manual feed tray is disposed at the paper feed position and the manual feed sheet is placed on the manual feed tray, the manual feed on the manual feed tray is performed even when the cover member is moved from the closed position to the open position. The seat will never slide down.

  According to the invention of claim 4, since the connecting member is a long member having one end fixed to the image forming apparatus main body side and the other end fixed to the manual feed tray, by adjusting its length, The allowable opening angle of the manual feed tray can be adjusted.

  According to the fifth aspect of the present invention, since the other end of the connecting member is connected to the lower end side of the manual feed tray, it is difficult to get in the way when the cover member or the manual feed tray is opened.

  According to invention of Claim 6, the connection member is formed of the flexible member, and can hold | maintain a manual feed tray in a tolerance | permissible open angle in a tension | tensile_strength state. On the other hand, when the manual feed tray has an opening angle that is smaller than the allowable opening angle, the intermediate part is in a relaxed state and maintains the desired curved or bent shape, so that the intermediate part interferes with other members or makes unnecessary contact. Can be effectively prevented. That is, since the shape at the time of tension | tensile_strength and relaxation | loosening of a connection member is anticipated, based on the prediction, it can prevent a connection member from interfering with another member about the shape of a connection member and arrangement | positioning of another member.

  According to the seventh aspect of the present invention, it is possible to stabilize the relaxed shape by positively providing the connecting member with the weakened portion.

  According to the invention of claim 8, the connecting member is formed of a string-like member or a chain-like member, and can hold the manual feed tray at an allowable open angle in a tension state. On the other hand, when the manual feed tray has an opening angle smaller than the allowable opening angle, the intermediate portion is in a relaxed state and loosens downward, so if no other member is placed at the location where the loosened portion is located, the connection There is no risk that the member will be caught by other members.

  According to the ninth aspect of the present invention, since the storage portion that stores the intermediate portion slackened in the relaxed state of the connecting member is provided, there is no possibility that the intermediate portion is unnecessarily caught by another member.

  According to the invention of claim 10, the connecting member can be provided at one end or both ends in the lateral direction of the manual feed tray, thereby achieving the effects of claims 1 to 9.

  According to the invention of claim 11, since the sheet conveying path can be opened by opening the cover member, for example, when a jam occurs in the sheet conveying path, the jammed paper can be easily removed. . When the cover member is opened, there is no possibility that the manual tray touches the stacking surface or the sheet on the manual tray falls even if the manual tray remains in the paper feed position.

  Hereinafter, the best embodiment of the present invention will be described in detail with reference to the drawings. In addition, in each drawing, the member etc. which attached | subjected the same code | symbol are the same structures, The duplication description about these shall be abbreviate | omitted suitably. Moreover, in each drawing, members and the like that are not necessary for the description are omitted as appropriate.

<Embodiment 1>
The image forming apparatus 1 according to the present invention will be described with reference to FIGS. In these drawings, the front, rear, left, right, top and bottom of the image forming apparatus 1 and the like are appropriately indicated by arrows in the drawings. 1 to 14, FIG. 1 is a perspective view of the entire image forming apparatus 1 as viewed from the upper left side of the front side thereof. FIG. 2 is a perspective view of the entire image forming apparatus 1 as viewed from the rear and obliquely upward on the left side. FIG. 3 is a diagram schematically showing the internal structure of the image forming apparatus 1 as viewed from the left side. 4A and 4B are schematic diagrams for explaining the closed positions A1, B1 and the open positions A2, B2 of the cover member 3 and the transport unit 73. FIG. 5 to 14 will be described later.

  Here, examples of the image forming apparatus 1 include a printer, a copier, a facsimile machine, and a multifunction machine of these. In the following description, a case where the image forming apparatus 1 is a printer will be described as an example. An image forming apparatus 1 shown in FIGS. 1 to 4 is a four-color full-color image forming apparatus 1 adopting an electrophotographic system, an intermediate transfer system, and a tandem system.

  With reference to FIGS. 1 and 2, the configuration of the entire image forming apparatus 1 as viewed from the outside will be described. The image forming apparatus 1 includes a substantially box-shaped (cuboid) image forming apparatus main body 2 and a cover member 3 supported by the image forming apparatus main body 2 so as to be freely opened and closed.

  The image forming apparatus main body 2 has a front surface covered with a cover member 3, and a left side surface and a right side surface covered with a left exterior panel 4 and a right exterior panel 5 made of synthetic resin. On the rear surface of the image forming apparatus main body 2, a part 7 of a sheet metal constituting the main body frame 6 is exposed as a structure. A paper discharge tray (sheet discharge unit) 10 having a sheet stacking surface 8 is disposed on the upper surface of the image forming apparatus main body 2. The sheet stacking surface 8 is composed of an inclined surface that is gently inclined so that the rear end side is positioned higher, and a plane that continues to the rear end of the inclined surface, and is directed rearward from a sheet discharge port 11 described later after image formation. The discharged sheet is supported from below. As shown in FIGS. 1 and 2, the rear end 10 a side of the paper discharge tray 10 is supported by the image forming apparatus main body 2 so as to be swingable (openable and closable). The front end side is held in an upright posture where it is lifted by approximately 90 degrees. As a result, an intermediate transfer unit 31A, toner containers 47, 48, 49, 50 and the like which will be described later can be attached and detached from above the image forming apparatus main body 2.

  As shown in FIGS. 4A and 4B, the cover member 3 has a lower end side swing center 76 supported by a shaft 77 of the image forming apparatus main body 2 so as to be swingable. 3, a closed position A1 that covers the front surface of the image forming apparatus main body 2 in the upright position shown in FIG. 4A, and a sheet conveyance path 52 and a sheet re-conveyance path 53 described later in the inclined attitude shown in FIG. It is possible to move between the opening position A2 to be performed. As shown in FIG. 2, release levers 15 each having a button 14 are provided near both left and right ends on the upper end side and the back side of the cover member 3. A hook member (not shown) is coupled to the release lever 15 via a connecting member (not shown). The hook member is disposed on the cover member 3 side. When the cover member 3 is closed, the hook member is engaged with a locking member (not shown) on the image forming apparatus main body 2 side to lock the cover member 3. When the cover member 3 is opened, when the button 14 is pulled forward, the hook member is swung through the connecting member and released from the locking member, so that the lock is released. In this state, the upper end side of the cover member 3 can be opened by pulling it forward, and can be arranged at the open position A2. As shown in FIG. 6, the position of the cover member 3 arranged at the open position A <b> 2 is held by a link 90. The link 90 is supported by the image forming apparatus main body 2 so that the base end portion 90a can swing. On the other hand, a long hole 90b is formed on the distal end side of the link 90 along the longitudinal direction. A screw 90c is passed through the elongated hole 90b, and the screw 90b is screwed into the cover member 3. When the cover member 3 is opened and closed in this state, the screw 90c moves along the long hole 90c and the entire link 90 swings. When the cover member 3 is opened and the screw 90c comes into contact with the tip of the long hole 90b, it cannot be opened any more. The position at that time is the open position A2.

  An operation panel 12 is disposed on the upper end side of the cover member 3. A touch panel type liquid crystal display unit and various buttons are arranged on the operation panel 12, and an operator (for example, a user or a service person) stands on the front side of the image forming apparatus 1 and operates the operation panel. 12, the entire image forming apparatus 1 can be operated.

  The cover member 3 is provided with an openable / closable manual feed tray 13 on the front side thereof. The manual feed tray 13 has a swing center 13c (see FIG. 3) of a base end portion (lower end side) 13a supported by the cover member 3 so as to be swingable, and is a cover member disposed at the closed position A1 shown in FIG. 3, the storage position C1 stored in an upright position (solid line in FIG. 3) and the feeding position C2 in an inclined position with the upper end 13b side pulled out toward the front (two-dot chain line in FIG. 3) can be taken. . When the manual feed tray 13 is disposed at the paper feed position C2, the manual feed tray 13 has an inclined posture in which the front end 13b side (free end side) is positioned upward with respect to the base end portion 13a, and the upper surface is set with a manual feed sheet. Therefore, the sheet stacking surface 13d is provided.

  The cover member 3 and the manual feed tray 13 are formed with an engaging recess (not shown) and an engaging projection (not shown) that can be engaged and disengaged with each other. When 13 is stored in the storage position C1, they are engaged with each other to hold the manual feed tray 13 in the storage position C1. In this state, even if the cover member 3 is opened and closed, the manual feed tray 13 maintains the state held at the storage position C1. For this reason, even when the cover member 3 is opened and closed in a state where the manual feed tray 13 is disposed at the storage position C1, the manual feed tray 13 remains held at the storage position C1. On the other hand, when the manual feed tray 13 arranged at the storage position C1 is positively opened by pulling the upper end 13b side, the engagement between the engagement concave portion and the engagement convex portion is released. Opening is possible. Further, the cover member 3 is provided with a stopper (not shown) for holding the manual feed tray 13 at the paper feed position C <b> 2, so that the manual feed tray 13 cannot be opened any more with respect to the cover member 3. Yes. This stopper keeps the opening angle (inclination angle) of the manual feed tray 13 with respect to the cover member 3 constant. Therefore, for example, if the cover member 3 is opened from the closed position A1 to the open position A2 while the manual feed tray 13 is disposed at the paper feed position C2, the opening angle of the manual feed tray 13 with respect to the image forming apparatus main body 2 is opened. Will grow.

  This is the end of the description of the configuration of the entire image forming apparatus 1 viewed from the outside.

  Next, the internal structure of the image forming apparatus 1 will be described with reference to FIG. The image forming apparatus 1 includes a sheet storage unit 20, a substrate storage unit 21, an image forming unit 22, a toner supply unit 23, and a paper discharge tray (sheet discharge unit) 10 in order from the lower side to the upper side of the image forming apparatus main body 2. Is provided. A sheet conveying unit 24 is provided between the front side of the image forming apparatus main body 2 and the cover member 3.

  A sheet cassette 25 is disposed in the sheet storage unit 20. The sheet feeding cassette 25 stores a plurality of sheets in a stacked state, and biases the leading end side (the right side in the figure) of the stacked sheets upward by a lift plate 26 disposed at the bottom. Yes. As a result, the uppermost sheet in the sheet feeding cassette 25 is fed by a pickup roller 27 of a sheet transport unit 24 described later, and further, the feeding roller 28 and the retard roller 30 prevent double feeding, and only one sheet is downstream. To the side. The paper feed cassette 25 can be inserted / removed (detached) from the front side (front side) of the image forming apparatus 1. A substrate storage unit 21 is disposed above the paper feed cassette 25.

  The substrate storage unit 21 is provided with a substrate and electrical components (not shown) that control the entire image forming apparatus 1. An image forming unit 22 is disposed above the substrate storage unit 21.

  The image forming unit 22 includes an intermediate transfer belt 31 and four (four color) image forming stations aligned along the rotation direction of the intermediate transfer belt 31 (arrow R31 direction), that is, magenta (M), Image forming stations 32, 33, 34, and 35 for forming toner images with cyan (C), yellow (Y), and black (K) toners are provided. Since the four-color image forming stations 32 to 35 have the same configuration, the magenta image forming station 32 will be described below, and the description of the remaining three-color image forming stations 33 to 35 will be omitted as appropriate. .

  The intermediate transfer belt 31 is formed in an endless shape, and is stretched between the driving roller 43 and the driven roller 44. The intermediate transfer belt 31 is rotated in the direction of the arrow R31 by the rotation of the driving roller 43 in the direction of the arrow.

  The magenta image forming station 32 includes a photosensitive drum 36, a charging device 37, an exposure device 38, a developing device 40, and a primary device that are arranged around the photosensitive drum 36 in the order of rotation (arrow direction). A transfer roller 41, a drum cleaner 42, and the like are included.

  The photosensitive drum 36 is driven to rotate in the direction of the arrow at a predetermined process speed. In this embodiment, an a-Si (amorphous silicon) photosensitive drum is used as the photosensitive drum 36.

  The charging device 37 uniformly (uniformly) charges the surface of the photosensitive drum 36 to a predetermined polarity and potential.

  The exposure device 38 is constituted by, for example, a laser scanner. The exposure apparatus 38 includes a laser oscillator (not shown), a polygon mirror 38a, lenses 38b and 38c, reflection mirrors 38d, 38e, and 38f, and these are integrally incorporated to constitute an exposure unit 38A. . The exposure device 38 reflects a laser beam L emitted from a laser oscillator (not shown) based on image information sent from a personal computer (not shown) or the like by a polygon mirror 38a that rotates at high speed, and lenses 38b, Then, the light is guided to the surface of the photosensitive drum 36 after uniform charging via a mirror 38c, reflecting mirrors 38d, 38e, 38f and the like. The surface of the photosensitive drum 36 is exposed to the laser beam L to remove the charge on the exposed portion, thereby forming an electrostatic latent image.

  The developing device 40 develops the electrostatic latent image. The developing device 40 includes a developing container 40a in which a developer is accommodated, a developing sleeve 40b, developer agitating members 40c, 40d, and the like, which constitute a developing unit 40A. The developer carried on the surface of the developing sleeve 40 b is selectively attached to the electrostatic latent image on the surface of the photosensitive drum 36 by applying a developing bias between the developing sleeve 40 b and the photosensitive drum 36. This is developed as a toner image. In the present embodiment, a two-component developer mainly composed of toner and carrier is used as the developer.

  The primary transfer roller 41 transfers the toner image formed on the surface of the photosensitive drum 36 to the intermediate transfer belt 31. The primary transfer roller 41 presses the back side of the intermediate transfer belt 31 to bring the surface of the intermediate transfer belt 31 into contact with the surface of the photosensitive drum 36. As a result, a primary transfer nip T <b> 1 is formed between the surface of the intermediate transfer belt 31 and the surface of the photosensitive drum 36. The toner image formed on the surface of the photosensitive drum 36 is conveyed to the primary transfer nip T1 as the photosensitive drum 36 rotates in the arrow direction. At this time, by applying a primary transfer bias to the primary transfer roller 41, the magenta toner image on the surface of the photosensitive drum 36 is primarily transferred onto the surface of the intermediate transfer belt 31. In the present embodiment, the intermediate transfer belt 31, the drive roller 43, the driven roller 44, the four primary transfer rollers 41, and the belt cleaner 46 are integrally incorporated in the transfer frame 39, and the intermediate transfer unit 31A as a whole. Is configured.

  The drum cleaner 42 removes toner (primary transfer residual toner) remaining on the surface of the photosensitive drum 36 without being transferred to the intermediate transfer belt 31 in the above-described primary transfer. In this embodiment, the photosensitive drum 36, the charging device 37, the drum cleaner 42, and the like are integrally configured to constitute the drum unit 36A.

  As described above, in the magenta image forming station 32, the magenta toner image formed on the surface of the photosensitive drum 36 is primarily transferred onto the surface of the intermediate transfer belt 31. Similarly, in the remaining three color (cyan, yellow and black) image forming stations 33, 34 and 35, toner images of cyan, yellow and black are formed on the surface of each photosensitive drum 36, respectively. The toner images are sequentially primary-transferred onto the intermediate transfer belt 31 by the primary transfer roller 41 and superimposed. As will be described later, these four color toner images are secondarily transferred onto the sheet all at once by applying a secondary transfer bias to the secondary transfer roller 45 at the secondary transfer nip T2. Toner remaining on the surface of the intermediate transfer belt 31 after the secondary transfer of the toner image (secondary transfer residual toner) is removed by a belt cleaner 46 disposed in the vicinity of the driven roller 44. A toner replenishing unit 23 is provided above the image forming unit 22.

  The toner replenishing unit 23 is provided with four toner containers that individually store toners of respective colors, that is, magenta, cyan, yellow, and black toner containers 47, 48, 49, and 50. The developing devices 40 of the color image forming stations 32 to 35 described above are provided with a remaining amount sensor (not shown) for detecting the remaining amount of the developer. When it is detected that the amount of the developer is less than a predetermined value, toner is supplied to the developing device 40 of each color from the toner containers 47 to 50 of each color. Above the toner replenishing portion 23, the above-described discharge tray 10 that can be opened and closed with respect to the rear end side is disposed.

  In the present embodiment, the sheet conveyance unit 24 is provided between the front side of the image forming apparatus main body 2 and the cover member 3, and a sheet conveyance path 52 that guides a sheet from below to above, and the sheet conveyance unit. It has a sheet re-conveying path 53 that is disposed on the front side of the path 52 and guides the sheet from the upper side to the lower side, and further has a manual feeding unit 54.

  The sheet conveyance path 52 rises upward from the vicinity of the above-described feeding roller 28, extends upward while gently curving backward, and extends upward in the vicinity of the secondary transfer nip T2 by changing the bending direction to the front. The sheet extends obliquely upward toward the rear and reaches the sheet discharge port 11. The sheet conveyance path 52 includes a rear guide 52a and a front guide 52b facing each other, and a part of the front guide 52b is formed in a conveyance unit 73 described later. In the sheet conveyance path 52, the pickup roller 27, the feeding roller 28, the retard roller 30, the conveyance roller pair 56, the registration roller pair 57, and the intermediate transfer belt 31 are sandwiched between the driving roller 43 in order from the bottom. A transfer roller 45, a fixing device (fixing unit) 58, a conveyance roller pair 60, a switching flapper 61, a paper discharge roller pair 62, and the like are provided. The above-described fixing device 58 includes a fixing roller (fixing member) 63 including a heating member (not shown), and a pressure roller (pressure member) 64 that forms a fixing nip N in pressure contact therewith. .

  The sheet fed by the pickup roller 27, the feeding roller 28, and the retard roller 30 from the sheet feeding cassette 25 is conveyed by the conveying roller pair 56 and the registration roller pair 57, and in the secondary transfer nip T2. The four color toner images on the surface of the intermediate transfer belt 31 are secondarily transferred at once, and heated and pressurized when passing through the fixing nip N to fix the four color toner images on the surface. The sheet on which the toner image has been fixed is guided to the lower surface of the switching flapper 61 by the conveying roller pair 60 and conveyed to the paper discharge roller pair 62, and is moved rearward from the sheet discharge port 11 facing the back side by the paper discharge roller pair 62. The sheet is discharged and stacked on the sheet stacking surface 8 of the sheet discharge tray 10. In the figure, the sensor flag 65 of the paper discharge sensor disposed immediately downstream of the paper discharge roller pair 62 is operating with the sheet P being discharged.

  The sheet re-conveying path 53 extends obliquely from the upper side to the front side of the above-described sheet discharge port 11, is gently curved and extends to the rear side with a steep slope, and protrudes downward at the lower end portion. Then, the sheet merges with the sheet conveyance path 52 described above. The sheet re-conveying path 53 includes a rear guide 53a and a front guide 53b that face each other. A part of the rear guide 53a is formed in a transport unit 73 described later. Further, most of the front guide 53b is incorporated inside the cover member 3 (rear end side). In the sheet re-conveying path 53, the reverse roller pair 66, the switching flapper 61, the first, second, third and fourth re-conveying roller pairs 67, 68, 70 and 71 are arranged.

  When images are formed on both sides of the sheet, the switching flapper 61 is switched to the position indicated by the two-dot chain line, and the sheet on which the toner image is fixed is conveyed to the conveying roller pair 60 and the switching flapper 61 It is conveyed along the upper surface and further conveyed rearward by the reverse roller pair 66. Then, the rear end of the sheet passes through the conveying roller pair 60, and the reverse roller pair 66 is reversely rotated before passing through the reverse roller pair 66, and the first to fourth re-conveying roller pairs 67, 68, 70, 71 The sheet is conveyed downward and conveyed to the sheet conveyance path 52. Then, the toner image is transferred and fixed on the rear surface of the sheet in the same manner as on the front surface, and is discharged rearward from the sheet discharge port 11 and stacked on the sheet stacking surface 8 of the discharge tray 10. The A manual feed roller 72 is disposed immediately in front of the conveyance roller pair 56 in the sheet conveyance unit 24. The manual feed roller 72 feeds the sheet set on the sheet stacking surface 13d on the upper surface of the open manual feed tray 13 indicated by a two-dot chain line in FIG. 3 toward the conveying roller pair 56 side. .

  As shown in FIG. 3, the above-described sheet conveyance unit 24 is provided with a conveyance unit 73 that can be freely opened and closed. The transport unit 73 is disposed between the sheet transport path 52 and the sheet re-transport path 53, and a part of the front guide 52 b in the sheet transport path 52 and a part of the rear guide 53 a in the sheet re-transport path 53. And the first roller 57a of the registration roller pair 57, the secondary transfer roller 45, and the first and second rollers 70a and 71a of the third and fourth re-conveying roller pairs 70 and 71, respectively. Yes. As shown in FIGS. 4A and 4B, the transport unit 73 has a swing center on the lower end 73a side, and is supported by the image forming apparatus body 2 so as to be swingable (openable and closable). Yes.

  The transport unit 73 is opened and closed in conjunction with the opening and closing operation of the cover member 3. As shown in FIGS. 4A and 4B, the cover member 3 has a swing center 76 at the lower end, and the swing center 76 is swingable by the shaft 77 of the image forming apparatus main body 2. It is supported. The image forming apparatus main body 2 includes the left side plate 74 and the right side plate 75 of the main body frame 6 made of a sheet metal, and extends to the front side, a part of the left side surface and the right side surface of the cover member 3 and the left side of the transport unit 73. It covers the side and the right side. A shaft 77 protrudes inward from the lower ends of the front end side of the left side plate 74 and the right side plate 75, and the swing center 76 of the cover member 3 is supported by the shaft 77 so as to be swingable. ing. Thereby, the cover member 3 can take the closed position A1 shown to Fig.4 (a), and the open position A2 shown to FIG.4 (b). The above-described transport unit 73 also has a swing center (not shown) on the lower end 73a side, and has a shaft (not shown) protruding inward from the left side plate 74 and the right side plate 75 on the image forming apparatus main body 2 side. It is supported so as to be able to swing. As a result, the transport unit 73 can take a closed position B1 shown in FIG. 4A and an open position B2 shown in FIG. 4B. The transport unit 73 is opened and closed in conjunction with the opening and closing operation of the cover member 3 without an operator intentionally opening and closing. Further, when the cover member 3 is opened, the cover 90 is held at the open position A2 shown in FIG. 4B by the link 90 shown in FIGS. The transport unit 73 is also held at the open position B2 shown in FIG. 4B by a similar link (not shown).

  In the image forming apparatus 1 described above, when the image is formed, the hook member on the cover member 3 side is engaged with the locking member on the image forming apparatus main body 2 side, so that the cover member 3 and the transport unit 73 are respectively shown in FIG. It arrange | positions in closed position A1, B1 shown to a). Thus, the sheet conveyance path 52 and the sheet re-conveyance path 53 are configured, and a nip is formed between each pair of rollers, so that the sheet can be conveyed.

  Here, when a jam or the like occurs during image formation, the button 14 (see FIG. 2) on the back side of the upper part of the cover member 3 is operated to move the cover member 3 to the arrow R3a in FIG. When opened in the direction, the transport unit 73 is also opened in conjunction with this. Thereby, as shown in FIG.4 (b), the cover member 3 and the conveyance unit 73 are arrange | positioned in open position A2, B2, respectively. In this state, since the sheet conveyance path 52 and the sheet re-conveyance path 53 are largely opened and exposed, it is possible to easily find and remove jammed paper. After the jam processing, when the cover member 3 is moved in the direction of arrow R3b in FIG. 4B, the transport unit 73 is also moved in the same direction in conjunction with this, and the cover member 3 and the transport unit 73 are in the closed position. Arranged at A1 and B1. Thereby, it is possible to resume image formation.

  This completes the description of the internal structure of the image forming apparatus 1.

  In the image forming apparatus 1 configured as described above, a jam has occurred in the sheet conveyance path 52 (see FIG. 3) or the sheet re-conveyance path 53 when the manual feed tray 13 is used to manually feed sheets. In some cases, the cover member 3 may be opened while the manual feed tray 13 is placed at the paper feed position C2 in order to remove jammed paper. In such a case, as shown in FIG. 5, the manual feed tray 13 is placed on the placement surface S (the surface on which the image forming apparatus main body 2 is placed or its virtual extension surface; the same applies hereinafter). There is a risk that the sheets stacked on the sheet stacking surface 13d of the manual feed tray 13 may fall. This is because the paper feed position C2 of the manual feed tray 13 is set with reference to the cover member 3, so that when the reference cover member 3 is opened, the opening angle of the manual feed tray 13 with respect to the image forming apparatus main body 2 is large. This is because it becomes too much.

  Therefore, in the present invention, as shown in FIG. 6, the image forming apparatus main body 2 and the manual feed tray 13 are connected by a connecting member 80, thereby restricting the opening angle of the manual feed tray 13 from becoming too large. The above-described problem, that is, the manual feed tray 13 is prevented from coming into contact with the placement surface S, and the sheet on the manual feed tray 13 is not dropped.

  Hereinafter, this point will be described with reference to FIGS. Among these, FIG. 5 is a diagram for explaining how the manual feed tray 13 comes into contact with the placement surface S. FIG. FIG. 6 is a diagram illustrating the connecting member 80 that connects the image forming apparatus main body 2 and the manual feed tray 13 and the manual feed tray 13 that is opened at the allowable opening angle α4. FIG. 7 is a perspective view illustrating the shape of the connecting member 80. FIG. 8 is a diagram illustrating the state of the connecting member 80 when the cover member 3 is disposed at the closed position A1 and the manual feed tray 13 is disposed at the storage position C1. FIG. 9 is a diagram illustrating the state of the connecting member 80 when the cover member 3 is disposed at the closed position A1 and the manual feed tray 13 is disposed at the paper feed position C2. FIG. 10 is a diagram illustrating the state of the connecting member 80 when the cover member 3 is disposed at the open position A2 while the manual feed tray 13 is disposed at the paper feeding position C2. However, in FIG. 8 to FIG. 10, illustration of the cover member 3 is omitted for convenience of explanation.

Here, as shown in FIG. 5, the angle formed by the cover member 3 disposed at the closed position A1 (not shown) and the cover member 3 disposed at the open position A2, that is, the front surface (side surface) of the image forming apparatus main body 2 is shown. ) The opening angle of the cover member 3 at the opening position A2 with respect to 2a is α1, and the angle formed between the manual feed tray 13 arranged at the storage position C1 (not shown) and the manual feed tray 13 arranged at the paper feed position C2 That is, when the opening angle of the manual feed tray 13 at the paper feed position C2 with respect to the cover member 3 is α2, when the cover member 3 is placed at the open position A2 while the manual feed tray 13 is kept at the paper feed position C2, The opening angle α3 of the manual feed tray 13 with respect to the front surface 2a of the image forming apparatus main body 2 is
α3 = α1 + α2
It becomes.

  That is, the manual feed tray 13 is largely opened with respect to the front surface 2a of the image forming apparatus main body 2, and the opening angle α3 is increased.

In the present embodiment, as shown in FIG. 6, the image forming apparatus main body 2 side and the manual feed tray 13 side are connected by the connecting member 80 as shown in FIG. 7 to the front surface 2 a of the image forming apparatus main body 2. On the other hand, the manual feed tray 13 was prevented from opening more than the allowable opening angle α4. Here, the allowable opening angle α4 is
α4 <α3
It was set to satisfy.

  The connecting member 80 shown in FIG. 7 is formed of a thin plate-like elongated member having flexibility, for example, a synthetic resin member. The connecting member 80 has attachment holes 80c and 80d at one end 80a and the other end 80b in the longitudinal direction, respectively, and a reinforcing rib 80e is provided around the attachment hole 80c on the one end 80a side. ing. Moreover, the weak part 80g and 80h are provided in the intermediate part 80f located between the attachment holes 80c and 80d among the connection members 80 at two places. Among these, the weak part 80g is arrange | positioned a little inside the above-mentioned rib 80e. On the other hand, the fragile portion 80h is disposed approximately in the middle between the fragile portion 80g and the mounting hole 80d on the other end 80b side. These weak parts 80g, 80h are formed by reducing the plate thickness of the connecting member 80. The connecting member 80 is bent at the fragile portions 80g and 80h when a force that shortens in the longitudinal direction is applied to be in a relaxed state. Thereby, it becomes possible to predict the shape when the connecting member 80 is in a relaxed state in advance, and it is possible to prevent the connecting member 80 at the time of relaxation from interfering with other members. The connecting member 80 described above is disposed on the left end side of the image forming apparatus main body 2. As shown in FIG. 8, one end 80a of the connecting member 80 is fixed to the manual feed lower frame 6a of the main body frame 6 on the image forming apparatus main body 2 side, and the other end 80b is inside the lower surface panel 13e on the manual tray 13 side. It is fixed to the rib 13h. Here, the manual paper feed frame 6 a is located at the lower end of the front side of the main body frame 6 a of the image forming apparatus main body 2, that is, immediately above the front surface of the paper feed cassette 25. Further, the rib 13 h is located in the vicinity of the lower end (base end portion) of the manual feed tray 13. One end 80a of the connecting member 80 is fixed by screwing the screw 81 through the attachment hole 80c (see FIG. 7) and screwing it into the manual image feed frame 6a. Further, the other end 80b of the connecting member 80 is fixed by passing the screw 82 through the mounting hole 80d and screwing it into the rib 13h on the manual feed tray 13 side. Further, as shown in FIG. 10, these fixed positions are set to positions where the manual feed tray 13 is not opened any more when the connecting member 80 is in a tension state. In the example shown in FIG. 10, the tensioned connecting member 80 passes above the swing center 13 c of the base end portion 13 a of the manual feed tray 13 and is fixed on the image forming apparatus main body 2 side and on the manual feed tray 13 side. A fixed position is set. In this way, the fixing positions of the one end 80a and the other end 80b of the connecting member 80 are set at the lower end portion on the image forming apparatus main body 2 side and the lower end side of the manual feed tray 13, so the cover member 3 is opened. When the jammed paper is removed by disposing the sheet conveyance path 52 and the sheet re-conveyance path 53 at the position A2, the connecting member 80 is unlikely to get in the way. That is, it is difficult for the operator to hit the jammed paper.

  The connecting member 80 configured and arranged as described above operates as follows. As shown in FIG. 8, when the cover member 3 is disposed at the closed position A1 (not shown) and the manual feed tray 13 is disposed at the storage position C1, one end 80a of the main body frame 6 is a manually fed lower frame 6a. In the connecting member 80, the other end 80b of which is fixed to the rib 13h of the manual feed tray 13, the weakened portion 80h of the intermediate portion 80f is bent, and as a whole, the connecting member 80 is in a relaxed state of an upward convex convex shape. As shown in FIG. 9, when the cover member 3 is disposed at the closed position A1 (not shown) and the manual feed tray 13 is disposed at the paper feed position C2, the fixing position on the manual feed tray 13 side changes greatly. This is almost the same as the relaxed state shown in FIG. Then, as shown in FIG. 10, when the cover member 3 is opened from the closed position A1 (not shown) toward the open position A2 (not shown) while the manual feed tray 13 is placed at the paper feed position C2. Before the cover member 3 reaches the open position A2, as shown in FIG. 10, the connecting member 80 is in a tensioned state. At this time, in the connection member 80, the bending of the weakened portion 80h that has been bent in the state of FIGS. 8 and 9 is eliminated, and the other weakened portion 80g is bent at an acute angle. As a result, the manual feed tray is disposed at the restriction position corresponding to the allowable opening angle α4, and further increase in the opening angle is prohibited. Thereafter, even if the cover member 3 is further opened, the manual feed tray 13 is not opened, and only the cover member 3 is opened. And the opening operation | movement is complete | finished because the cover member 3 is arrange | positioned in the open position A2 shown in FIG. That is, the manual feed tray 13 is not opened by the connecting member 80 beyond the allowable opening angle α4 shown in FIG.

In the present embodiment, as the connecting member 80, the effective length of the intermediate portion 80f (the length that directly affects the change in the allowable opening angle α4 of the manual feed tray 13; The allowable opening angle α4 can be set as appropriate. For example,
(1) The effective length of the connecting member 80 is set so that the allowable opening angle α4 is smaller than the above-described opening angle α3 (= opening angle α1 of the cover member 3 + opening angle α2 of the manual feed tray 13).

  In this case, since the allowable opening angle α4 is smaller than the opening angle α3, it differs depending on the size of the mounting surface S, the length of the manual feed tray 13, etc., but compared with the case where the opening angle is α3, At least, the manual feed tray 13 is less likely to contact the placement surface S, and the sheets stacked on the sheet stacking surface 13d are less likely to fall.

  (2) The effective length of the connecting member 80 is set to a length at which the manual feed tray 13 disposed at the restriction position at the allowable opening angle α4 does not contact the placement surface S. Thereby, it can prevent reliably that the manual feed tray 13 contact | abuts to the mounting surface S. FIG.

  (3) The effective length of the connecting member 80 is set to such a length that the allowable opening angle α4 is 90 degrees or less. Accordingly, it is possible to reliably prevent the manual feed tray 13 from coming into contact with the placement surface S. Further, the size and properties of the manual feed sheets stacked on the sheet stacking surface 13d of the manual feed tray 13 can be reduced. Regardless, this sheet can be reliably prevented from falling off the sheet stacking surface 13d.

  In the present embodiment, the effective length of the connecting member 80 is set such that the allowable opening angle α4 is the same as or larger than the opening angle α1 of the cover member 3. When the allowable opening angle α4 is smaller than the opening angle α1 of the cover member 3, the cover member 3 reaches the opening position A2 when opening the cover member 3 from the closing position A1 toward the opening position A2. Since the connecting member 80 is in a tensioned state before the cover member 3 is opened, the cover member 3 cannot be opened to the open position A2, or the weight of the cover member 3 is applied to the tensioned connecting member 80, so that the connecting member 80 is This is because there is a possibility that it may come off the fixed part.

From the above, as the effective length of the connecting member 80, the allowable opening angle α4 is
It is preferable to set so as to satisfy α1 ≦ α4 ≦ 90 degrees. However, if the allowable opening angle α4 is too close to the opening angle α1, the sheets stacked on the sheet stacking surface 13d of the manual feed tray 13 are sandwiched between the manual feed tray 13 and the cover member 3 and are not necessary for the sheets. There is a risk of creases. In addition, the weight of the cover member 3 may be applied to the manual feed tray 13 through the stacked sheets.

  Next, a configuration in the vicinity of the base end portion 13a of the manual feed tray 13 will be described with reference to FIGS. 11 to 14 are views showing the vicinity of the base end portion 13a of the manual feed tray. Of these, FIG. 11 shows a conventional configuration, and FIG. 12 shows the manual feed tray 13 placed in the storage position C1. 13 shows a state where the manual feed tray 13 is arranged at the paper feed position C2, and FIG. 14 shows a state where the manual feed tray 13 is arranged at the storage position C1, and the paper feed cassette 25 is placed on the front side. Each of these is shown in the figure.

  As shown in FIG. 11, the manual feed tray 13 has a substantially rectangular bottom panel on the front side in the state of being placed at the storage position C1 (on the bottom side in the state of being placed at the paper feed position C2 shown in FIG. 3). 13e. The bottom panel 13e has a quadrangular arcuate portion 13f on the lower end side with respect to the swing center 13c. Conventionally, as shown in FIG. 11, the operator's hand is between the tip 13 g of the arc-shaped portion 13 f of the manual feed tray 13 disposed at the storage position C <b> 1 and the manual feed lower frame 6 a of the main body frame 6. A gap G enough to fit the fingertip was formed. For this reason, when the operator rotates the manual feed tray in the direction of the arrow and opens it, the tip 13g of the arcuate portion 13f rotates in the direction of narrowing the gap G. Further, when pulling out the paper feed cassette 25 forward (right side in FIG. 11), there is a possibility that a fingertip may be caught between the upper end of the front face of the paper feed cassette 25 and the tip 13g of the arcuate portion 13f.

  Therefore, in this embodiment, the gap G is filled so that the fingertip is not pinched. As shown in FIG. 12, the extending rib 6 b is protruded from the manual feed lower frame 6 a toward the tip 13 g of the arc-shaped portion 13 f of the manual feed tray 13. The gap G between the tip 6c of the extending rib 6b and the tip 13g of the arcuate portion 13f is set to a small gap G that does not allow a fingertip to enter.

  Thus, as shown in FIG. 12, when the manual feed tray 13 is disposed at the storage position C1, the gap G between the tip 6c of the extending rib 6b and the tip 13g of the arcuate portion 13f is narrow. There is no risk of the fingertip being inserted. Also, as shown in FIG. 13, even when the manual feed tray 13 is opened and disposed at the paper feed position C2, the arcuate portion 13f follows the tip 6c of the extending rib 6b with the swing center 13c as a reference. Therefore, the gap G does not increase. Furthermore, as shown in FIG. 14, the fingertip is not caught in the gap G when the paper feeding cassette 25 is pulled out.

  In the above-described embodiment, the case where the cover member 3 covers the front surface 2a of the image forming apparatus main body 2 has been described as an example. However, the present invention is not limited to this, and the cover member 3 is not limited to the image forming apparatus main body 2. The present invention can be applied as it is even if it has a structure that covers the left side surface, the right side surface, and the rear surface, and when it is applied, substantially the same effect can be achieved.

  In the above description, the case where the connecting member 80 is disposed on the left end side of the manual feed tray 80 has been described as an example. However, the present invention is not limited thereto, and is disposed on the right end side instead of the left end side. Furthermore, it may be arranged on both the left end side and the right end side.

  In the above description, an example has been described in which the connecting member 80 is formed of a thin, thin plate-like member having flexibility, for example, a synthetic resin member. Instead, the connecting member 80 is a string-like member. Or you may comprise by a chain | strand-shaped member (not shown). By the way, when the connection member 80 is constituted by a string-like member or a chain-like member, when the connection member 80 is in a relaxed state, the intermediate portion is loosened and hangs downward. If such a state is left unattended, while the string-like member or chain-like member repeats the tension and relaxation, the intermediate part is caught by the other member and the other member is damaged, or the manual feed tray 13 is opened. There is a risk of loss. In order to prevent such a problem, for example, a concave storage box (storage unit: not shown) for storing the intermediate portion in the relaxed state may be provided.

  In the above description, the case where the present invention is applied to the image forming apparatus has been described. However, the present invention has another cover member that covers the side surface of the apparatus main body and that can be opened and closed. It can also be applied to the general case with a cover.

FIG. 2 is a perspective view of the entire image forming apparatus as viewed from the diagonally upper left side on the front side. FIG. 2 is a perspective view of the entire image forming apparatus as viewed from the rear and obliquely upward on the left side thereof. FIG. 2 is a diagram schematically showing an internal structure of the image forming apparatus as viewed from the left side. (A), (b) is a schematic diagram explaining the closed position of a cover member and a conveyance unit, and an open position. It is a figure explaining how a manual feed tray contacts a mounting surface. FIG. 5 is a diagram illustrating a connecting member that connects the image forming apparatus main body and a manual feed tray, and a manual feed tray that is opened at an allowable opening angle α4. It is a perspective view explaining the shape of a connection member. It is a figure explaining the state of a connection member when a cover member is arrange | positioned in a closed position and a manual feed tray is arrange | positioned in a storage position. It is a figure explaining the state of a connection member when a cover member is arrange | positioned in a closed position and a manual feed tray is arrange | positioned in a paper feeding position. FIG. 6 is a diagram illustrating a state of a connecting member when a cover member is disposed at an open position while a manual feed tray is disposed at a paper feeding position. FIG. 10 is a diagram illustrating a configuration in the vicinity of a proximal end portion of a manual feed tray of a conventional image forming apparatus. It is a figure explaining the base end part vicinity of the manual feed tray arrange | positioned in the accommodation position. FIG. 6 is a diagram illustrating a vicinity of a proximal end portion of a manual feed tray arranged at a paper feeding position. FIG. 6 is a diagram illustrating a state in which a sheet feeding cassette is pulled out to the front side with respect to a manual feed tray disposed at a storage position.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Image forming apparatus, 2 ... Image forming apparatus main body, 2a ... Front (side), 22 ... Image forming part, 3 ... Cover member, 13 ... Manual feed tray, 13a ... Base end of manual feed tray Section (lower end side), 24... Sheet conveying section, 52... Sheet conveying path, 53... Sheet re-conveying path (sheet conveying path), 80. The other end of the connecting member, 80f .... intermediate part of the connecting member, 80g, 80h .... fragile part,

Claims (11)

In an image forming apparatus including a sheet conveying unit that conveys a sheet and an image forming unit that forms an image on the sheet in the image forming apparatus main body,
A cover member that is supported by the image forming apparatus main body so that the lower end side thereof is swingable and covers a side surface of the image forming apparatus main body in an upright position; ,
A storage position in which the lower end side is swingably supported by the cover member and stored in an upright position with respect to the cover member disposed in the closed position, and a feeding position in an inclined position in which the upper end side is pulled out toward the front A manual feed tray
A connecting member that connects the image forming apparatus main body and the manual feed tray to limit an allowable opening angle of the manual feed tray with respect to a side surface of the image forming apparatus main body and arranges the manual feed tray at a restriction position;
The connecting member has an allowable opening angle formed between a side surface of the image forming apparatus main body and the manual feed tray when the cover member is placed in the open position while the manual feed tray is placed in the paper feeding position. Configured to be smaller than the opening angle,
An image forming apparatus. When the surface on which the image forming apparatus main body is mounted is a mounting surface,
The allowable opening angle is set to an opening angle at which the manual feed tray does not contact the placement surface or the virtual extension surface of the placement surface,
The image forming apparatus according to claim 1. The allowable opening angle is set to 90 degrees or less,
The image forming apparatus according to claim 2. The connecting member is a long member having one end fixed to the image forming apparatus main body side and the other end fixed to the manual feed tray side.
The image forming apparatus according to claim 3. The connecting member has the other end connected to a lower end side of the manual feed tray.
The image forming apparatus according to claim 4. The connecting member is formed by a flexible member, holds the manual feed tray at the allowable opening angle in a tension state, and maintains a desired curved shape or a bent shape in an intermediate portion in a relaxed state.
The image forming apparatus according to claim 5. The connecting member has a weakened portion for maintaining the desired curved shape or bent shape in the intermediate portion in a relaxed state.
The image forming apparatus according to claim 6. The connecting member is formed of a string-like member or a chain-like member, holds the manual feed tray at the allowable opening angle in a tension state, and the intermediate portion is slackened downward in a relaxed state.
The image forming apparatus according to claim 6. A storage portion for storing the intermediate portion loosened in the relaxed state of the connecting member;
The image forming apparatus according to claim 8. The connecting member is disposed at at least one of the lateral ends of the manual feed tray.
The image forming apparatus according to claim 1, wherein the image forming apparatus is an image forming apparatus. The sheet conveying unit has a sheet conveying path opened by opening the cover member.
The image forming apparatus according to claim 1, wherein the image forming apparatus is an image forming apparatus.

Images